I noticed today that my Prepar3D.cfg file was corrupted (half of the file was in there twice - inserted right in the middle of a section header....). However, P3D loaded it just fine. @dbw please check if COCKPIT_HIGH_LOD or MAX_VC_TEXTURE_RESOLUTION is in there more than once. If it is, please follow JRBarrett's advice and delete the Prepar3d.cfg (create copy of the file first, if you wish).